/Engine/Plugins/Runtime/OpenXR/Source/OpenXRHMD/Public/IOpenXRExtensionPlugin.h
FOpenXRHMD::OnFinishRendering_RHIThread.
virtual void UpdateCompositionLayers ( XrSession InSession, [TArray](API\Runtime\Core\Containers\TArray)< const XrCompositionLayerBaseHeader * > & Headers )